The Kuntze Krypton® DIS and Krypton® Multi do not currently hold an NSF 61 certificate.
NOTE - In many cases regulatory agencies have approved the return of the Kuntze analyzer sample line back into the potable grade water process/source. Although we do not currently hold an NSF 61 certificate, a certificate would be feasible because of the principle of measurement that Kuntze employs (a physical measure of differential current with no chemical addition) and the inert materials used for construction like glass, precious metals, and high grade plastics (PVC).
Additionally, the measuring systems regulate the measured sample line water flow to 30 L/hr (8 GPH). In regards to many process flows/sources our equipment makes contact with a negligible comparison of water volume.